I'm trying to find a yaoi series I read quite sometime ago. The story goes like this.
The protagonist has an unrequited love for his friend who's getting married soon. So he went to a gay bar to chill, and another man, named Kou picked him up. Turns out he was his company president. Kou was so sweet to the protagonist but it was all a game. He was a player and planned to ditch the protagonist after capturing his heart. Then, the protagonist found out and transferred office and Kou tried to chase him back.
Looking for a shoujo manga, the female lead has a pretty sister who is a model so she feels inferior. Then she like this guy in school, but the guy had a sad past and does not believe in love etc.